7. A new medicine has been developed and its effectiveness
has been determined by carrying out an experimental study.
30 patients were divided into groups of 20 and 10. The group
having 20, were given medicine while the other group dint
get any medication. The results obtained where as follows:-
Medication
Non-medication
Improved 8
2
Unimproved 12
8
Based on data, I think medication was:-
Answers were Sorted based on User's Feedback
Answer / piyush
Ans (a) somewhat effective as in 8 patients improved while
in other only 2 improved.
(b) Basically ineffective because difference
between improved and unimproved where 6 and 4 respectively.
(c) Basically ineffective because in the control
group, also 2 patients improved without taking any medicine.
(d) Somewhat effective because 40% of the students
improved in medication (8/20), and only 20% improved in case
of control (2/10).
| Is This Answer Correct ? | 2 Yes | 0 No |
Sports readers,10 tables,4chairs per table, each table has different number of people then how many tables will left without at least one person?
The ratio between the perimeter and the breadth of a rectangle is 5: 1. What is the length of the rectangle If the area of the rectangle is 216 sq. cm?
How many integers between 100 and 150, inclusive, cannot be evenly divided by 3 nor 5?
You need to find our the fastest three (in order) out of six horses. You have a racing track in which three horses can run at the same time. What is the minimum number of races required? Taking notations as A1,A2,A3 and B1,B2,B3 for 6 horses, explain your answer. (You don't have any time measurement tool.)
2 persons are doing part time job in a company(say a and b). THe company is open for all the 7 days of the week.'A' works every second day.'B' works every 3rd day.If 'A'works on 1st june and 'B' works on 2nd june.Find out the date on which both 'A' and 'B' will work together.
A seller has a set of apples out of which he sells one half of it and half an apple to his first customer.then he sells half of the remaining apples and a half apple to his second customer.Then he sells half of the remaining apple and ? apple to his third customer and so on.This repeats upto 7th customer and no more apples are remaining . Find the total no of apples he had.
8 Answers Accenture, COG, CTS, HCL,
if the radius of the circle is increased by 6% then its area increased by
A 2D array is declared as A[9,7] and each element requires 2 byte.If A[ 1,1 ] is stored in 3000. Find the memory of A[8,5] ?
3978 + 112 x 2 = ? ÷ 2 (a)8180 (b)2101 (c)4090 (d)8404 (e)None of these
What is the angle between the two hands of a clock when time is 8:30
Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved
Hello My name is vijay right now I'm preparing for SBI po, I am good at aptitude but not better. I am lagging time you know competitive exams are to answer in span of time. So any website regarding aptitude short cuts or tricks Pls post to my mail. I am waiting